著者

TADANO Hiroto SAKURAI Tetsuya KURAMASHI Yoshinobu

出版者

筑波大学大学院システム情報工学研究科コンピュータサイエンス専攻

雑誌

Technical Report of Department of Computer Science

巻号頁・発行日

pp.1-10, 2008

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In this paper, the influence of errors which arise in matrix multiplications on theaccuracy of approximate solutions generated by the Block BiCGSTAB method is analyzed.In order to generate high accuracy solutions, a new Block Krylov subspacemethod is also proposed. Some numerical experiments illustrate that high accuracysolutions can be obtained by using the proposed method compared with the BlockBiCGSTAB method.